Driving box saddle and spring arrangement for locomotives



June 29, 1937. A. WALLACE ET Al. 2,085,689 A DRIVING BOX SADDLE AND-SPRING A RRANGEMENT FOR LOCQMOTIVES Filed Aug. 25, 1954 Patented .ame`29, 1937 UNITED STATES maar orner. y

DRIVING BOX SADDLE AND SPRING AR- RANGEMEN'I FOR LOCOMOTIVES AllenWallace, Moorestown, N. J., and Jesse F.

Holloway, Aldan, Pa.

Application August 25, 1934, Serial No. '741,358

8 Claims.

tion of the load upon the journal box as well as that carried by thetwin springs preferably of the semi-elliptic leaf type, although coilsprings may be used in some instances if desired. A further object ofthe invention is to provide an improved saddle that is adapted to effectsaid equalization and to be suitably guided by the pedestal shoes. Inone specic aspect of the invention the foregoing objects areaccomplished by providing a '20 saddle having an` improved swivel orarcuate joint in cooperation with the journal box, this joint preferablybeing of a cylindrical nature or if desired it may be spherical. A morespecific object of the invention is toprovide in combination with ourimproved saddle, means for adequately lubricating the swivel jointbetween the saddle and journal box.

` Other objects and advantages will be more apparent to those skilled inthe art from the following description of the accompanying drawing inwhich:

Fig. 1 is an enlarged side elevation of the locomotive frame and drivingbox embodying features of our invention;

Fig. 2 is a vertical transverse section taken on the line 2--2 of Fig.1;

Fig. 3 is a perspective of the saddle box;

Fig. 4 is a sectional view of a modified form of support between thesaddle and journal box.

In the illustrated embodiments of our invention which are shown hereinmerely for the purpose of Vdisclosing certain speciiic forms among ipossible others that the invention might take, We have shown ourinvention in connection with a twin spring arrangement constituting thejoint frame arrangements. However, a frame I as disclosed herein haspedestals 2 while the top 3 of the pedestal opening 4 connects thepedestalsl in the usual manner. A pedestal cap 5 connects the lower endsof the pedestals. Pedestal shoes 6 of any usual or suitable form areadapted to of oil will always be maintained therein.

guide and supporta journal box generally indicated at I which maybe ofany desired kind either as to roller bearing or plain bearing to serveas a driving truck box or other purpose. Inasmuch as the details ofconstruction of such 5 boxes are well-known, it is not deemed necessaryto describe the same in detail as it will suffice to state that the boxis guided by theshoes through usual flanges 8 whereas the top 9 of thebox differs from the standard boxes to permit 10 the embodiment of ourparticular improvement.

It will be observed from Fig. 2 that the top of the box has a concaveseat I0 directly beneath the portion 3 of the locomotive frame.

Seated upon the concave surface I il is a saddle l5 generally indicatedat EI having as shown in Fig. 2 a substantial flat portion generallyindicated at I2, I3, and I4 on the under side of which is formed a'convex portion I5 for seating in concave surface It. The surfaces I5and I@ are sub- 20 stantially cylindrical with the axis of the cylinderextending longitudinally of the frame at substantially right angles tothe axis of the Wheel axle I6. Projecting upwardly from the at portionI2-I4 are frame flanges II and I8 adapted 25 as shown in Fig. 2 to lie`in relatively close juxtaposition to the sides of the frame portion 3while shoe lianges I9 and 2li project from opposite ends of the saddleand are suitably supported by ribs 2l and.22. The shoe flanges I9 and 2tengage 30 the pedestal shoes Ei in the same manner as the journal boxanges 8; in fact, the flanges I9 and 20 are disposed immediately abovethe` journal box flanges 8. As a result of the foregoing construction,the saddle is maintained in alignment 35 with the spring, pedestals andthe cylindrical concave seat Ill. Spring seats 23 and 24 are adapted toreceive spring bands 25 and 26 of twin springs 2l and 23. These springslie along each side of each frame member as shown more 40 clearly inFig. 1 and are 'connected to any suitable spring and equalizing system,one specific arrangement of which `is shown in said Glaenzer and Wallaceapplication. Tosuitably lubricate the bearing I3, an oil well 29 isformed between 45 the frame flanges I'I and It. A suitable oil passage30 allows the lubricant to flow to seat I0 and due to its concavecharacter, a certain level In operation it will be understood that,rela- 50 tively speaking, the saddle Il and twin springs 2l and 28 tendto maintain a definite relation to the locomotive frame, whereas theaxles such as It move up and down and tilt and cant, there- 55 bycausing the axles to have a variable angular relation to the saddle. Inthe usual form of saddle arrangements, the saddle would tilt and cantwith the axle and journal box, thus twist-V ing the springs and causingthe same to rub the locomotive frame. However, in our improvedarrangement, the bearing and axle can tilt without such action beingtransmitted to the saddle, this being due to the curved mating bearingmembers Ill and l5. 'I'hus'the spring saddle is adapted tol remain in asubstantially horizontal position without danger of being tilted due toup and down movement of the axle. Various types of journal boxes may beemployed so as to permit tilting `with the axle and Without placingabnormal strain upon the housing flanges 8 and'pedestal shoes 6. In thespecific form of journal box disclosed herein which is Vof the rollerbearing type, the journal housing proper has trunnions .'-52 journalledin the transverse portion 33 connecting the housing Vflanges 8 on eachside of the respective pedestals 2. Y

In the modification shown in Fig. 4, the saddle is provided with aconcave seat IG' and the journal housing is provided with a cooperatingpreferablykcylindrical convexseat I5'. These concav-convex bearingsurfaces are lubricated in the same manner as shown in the preferredform.V

From the foregoing disclosure it is seen that I have provided anextremely simple and yethighly effective construction' of elements andcombination whereby the twin springs may at all times properly functionWithout abnormal restraint or limitations being placed thereon whereby agreater flexibility of riding quality together with minimum wear andtear is obtained.

" It will of course be understood that various changes in details ofconstruction and arrange- Yment of parts may be made by those skilled inthe art without departing from the spirit of the invention as set forthin the appended claims.

We claimrY 1. A railway vehicle comprising, in combination, a. framehaving a pedestal opening,V a journal box disposed therein and having atop portion provided with a curved surface for a seat, a saddle having amating curved surface supported on said seat, and twin. springssupported on said saddle along each side of said frame, whereby tiltingof the journal box is prevented from being transmitted to said springs,said saddle having an oil well from which said curved surfaces arelubricated.

2. A railway vehicle comprising, in combination, a frame having apedestal opening, a journal box disposed therein and having a topportion `provided with a curved surface for a seat, a

saddle having a mating curved surface supported on said seat, and twinsprings supported on said saddle along each sideof said frame, wherebytilting of the journal box is prevented from being transmitted to saidsprings, said bearing surface which is on top of the journal box being'concave and the cooperating surface on the saddle being convex, andmeans forming an oil well in said saddle to supply said concave surface.

3. A railway vehicle comprising, in combination, a frame having apedestal opening, a journal box disposed therein and having a topportion provided with a curved surface for a seat, a saddle having amating curved surface supported on said seat, and twin springs supportedon said saddle along each side of said frame, whereby tilting of thejournal box is prevented from being transmitted to said springs, saidsprings being provided with spring bands, and said saddle havingrecessed portions with vertical surrounding walls to receive and holdthe spring bands in place.

4. A railway vehicle comprising, in combination, a frame having apedestal opening, a journal box disposed therein and having a topportion f provided with a curved surface for a seat, a saddle having amating curved surface supported on said seat and provided with springreceiving recesses, twin springs supported in said recesses of thesaddle along each side of said frame whereby tilting of the journal boxis prevented from being transmitted to said springs, and laterallyspaced upwardly projecting flanges formed with said saddle and disposedbetween said spring recesses so as to lie closely adjacent to the sidesof said frame.

5. A railway vehicle comprising, in combination, a frame having apedestal opening, a journal box disposed therein and having a topportion provided with a curved surface for a seat, a saddle having amating curved surface supported on said seat, and twin springs supportedon said saddle alongV each side of said frame, whereby tilting of thejournal box is prevented from being transmitted to said springs, saidbearing surface on the top of the journal box being convex and thecooperating surface on the saddle being concave, and means forming anoil well in said saddle to supply said concave surface.

6. A railway vehicle comprising, in combination, a frame having apedestal opening, a journal box disposed therein, a saddle pivotallysupported on the top of said box and provided with recesses having sidewalls in each direction, and twin springs supported on said saddle alongeach side of said frame and provided with spring bands receivable insaid recesses engageable with and held against lateral movement by saidwalls.

7. The combination set forth in claim 6 further characterized in thatsaid saddle has a pair of upwardly projecting flanges disposed betweensaid recesses and closely adjacent to the sides of said frame, and arecess formed in said saddle between said flanges to provide an oilwell.

8. The combination set forth in claim 6 further characterized in thatthe saddle has an elongated central portion in plan View and wingportions projecting laterally therefrom in which said spring bandrecesses are formed, whereby saidelongated central portion is disposedbeneath the frame.

ALLEN WALLACE. JESSE F. HOLLOWAY.

